I have a 2018 wrx cvt and I'm in the market for an exhaust. I just have a few questions. I'm most likely going to get the invidia r400. I'm debating in also getting the invidia catless downpipe to go with it. Will this set up cause me to get a CEL or will I be ok? Also what are the benefits of having a catless vs catted downpipe? I live in Florida so dont have to worry about emissions laws. Thanks.